End mill
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsTakuya OTA, Masayoshi ZAITSU, Naohiro OTSUKI
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Abstract
An end mill includes: a columnar tool body that rotates about a center axis; and outer peripheral cutting edges on an outer peripheral surface of the tool body, the outer peripheral cutting edges including a first outer peripheral cutting edge and a second outer peripheral cutting edge. A relief angle θ of the first outer peripheral cutting edge changes to increase in an axial direction of the tool body from a bottom face that is one end of the tool body. A relief angle θ of the second outer peripheral cutting edge changes to decrease in the axial direction from the bottom face.
Claims6
An end mill comprising:
- a columnar tool body that rotates about a center axis;
- and
- outer peripheral cutting edges provided on an outer peripheral surface of the tool body, the outer peripheral cutting edges including a first outer peripheral cutting edge and a second outer peripheral cutting edge, wherein
- a relief angle of the first outer peripheral cutting edge changes to increase in an axial direction of the tool body from a bottom face that is one end of the tool body, and
- a relief angle of the second outer peripheral cutting edge changes to decrease in the axial direction from the bottom face.
Dependencies are inferred from the claim text.